/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.dx.dex.file;

import com.android.dx.rop.cst.CstFieldRef;

/**
 * Representation of a field reference inside a Dalvik file.
 */
public final class FieldIdItem extends MemberIdItem {

	/**
	 * Constructs an instance.
	 * 
	 * @param field
	 *            {@code non-null;} the constant for the field
	 */
	public FieldIdItem(CstFieldRef field) {
		super(field);
	}

	/** {@inheritDoc} */
	@Override
	public ItemType itemType() {
		return ItemType.TYPE_FIELD_ID_ITEM;
	}

	/** {@inheritDoc} */
	@Override
	public void addContents(DexFile file) {
		super.addContents(file);

		TypeIdsSection typeIds = file.getTypeIds();
		typeIds.intern(getFieldRef().getType());
	}

	/**
	 * Gets the field constant.
	 * 
	 * @return {@code non-null;} the constant
	 */
	public CstFieldRef getFieldRef() {
		return (CstFieldRef) getRef();
	}

	/** {@inheritDoc} */
	@Override
	protected int getTypoidIdx(DexFile file) {
		TypeIdsSection typeIds = file.getTypeIds();
		return typeIds.indexOf(getFieldRef().getType());
	}

	/** {@inheritDoc} */
	@Override
	protected String getTypoidName() {
		return "type_idx";
	}
}
